• All-metal end ring seal design for maximum service life. The industry standard for over 75 years.
• Provides 300% greater lubricant capacity than o-ring style couplings.
• Greater lubricant capacity allows longer periods between scheduled lubrications and longer service life.
• Straight tooth design provides improved load distribution, lower stresses and longer life for the gear teeth.

Technical Specifications

Length Through Bore (in)	4.1875 in
Coupling Size	3.5
Rating HP @ 100 RPM	235
Tooth Profile	Straight Faced Involute Hub tooth
Coupling Type	Gear Coupling
Model Name	1-5-7_FF
Bore Type	Rough Bore
Outside Diameter (in)	11 in
Bolt Type	Exposed
Material	Medium Carbon Steel
Fastener Quantity	8
Bolt Circle	9.5 in
Speed Max (rpm)	6,000 rpm
Measurement System	Imperial
Configuration	Full Flex
Torque Rating (in-lb)	148,000 in/lbs
Torque [Max] (in-lb)	296,000 in/lbs
Style	FASTS
Lube/Non-Lube	Lubricated
Compatible Bore Size [Min] (in)	0 in
Overall Length (in)	8.5 in
Hub Diameter (in)	7.75 in
Temperature Range	-40 to +190 °F
Features	Exposed Bolt / Full Flex Coupling
Maximum Operating Angular Misalignment	0.5 °
Includes	Hubs (2) Sleeves (2) Seals (2)
Performance	Lubrication Hole
Sleeve Type	Flanged
Bore Size Max (in)	3.75 in
Fastener Size	3/4 x 3 3/8

General Specifications

UPC	662384010121
Weight	121.66 LB